Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2023	Dec. 31, 2022
Shareholders' equity
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Treasury Stock, Common, Shares	41,587,480	41,587,480
Class A [Member]
Shareholders' equity
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	116,054,291	105,252,421
Class B [Member]
Shareholders' equity
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	0	0
Common stock, shares issued	0	0